WO1998018953A1 - Nouveau procede de fabrication de fr900482 et de composes analogues - Google Patents
Nouveau procede de fabrication de fr900482 et de composes analogues Download PDFInfo
- Publication number
- WO1998018953A1 WO1998018953A1 PCT/JP1997/003907 JP9703907W WO9818953A1 WO 1998018953 A1 WO1998018953 A1 WO 1998018953A1 JP 9703907 W JP9703907 W JP 9703907W WO 9818953 A1 WO9818953 A1 WO 9818953A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- fusarium
- culture
- white
- agar
- strain
- Prior art date
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- 229910002027 silica gel Inorganic materials 0.000 description 1
- 235000017557 sodium bicarbonate Nutrition 0.000 description 1
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 1
- 239000004317 sodium nitrate Substances 0.000 description 1
- 235000010344 sodium nitrate Nutrition 0.000 description 1
- 239000004455 soybean meal Substances 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 239000007362 sporulation medium Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 235000015112 vegetable and seed oil Nutrition 0.000 description 1
- 239000008158 vegetable oil Substances 0.000 description 1
- 239000012138 yeast extract Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12P—FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
- C12P17/00—Preparation of heterocyclic carbon compounds with only O, N, S, Se or Te as ring hetero atoms
- C12P17/18—Preparation of heterocyclic carbon compounds with only O, N, S, Se or Te as ring hetero atoms containing at least two hetero rings condensed among themselves or condensed with a common carbocyclic ring system, e.g. rifamycin
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12P—FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
- C12P17/00—Preparation of heterocyclic carbon compounds with only O, N, S, Se or Te as ring hetero atoms
- C12P17/18—Preparation of heterocyclic carbon compounds with only O, N, S, Se or Te as ring hetero atoms containing at least two hetero rings condensed among themselves or condensed with a common carbocyclic ring system, e.g. rifamycin
- C12P17/188—Heterocyclic compound containing in the condensed system at least one hetero ring having nitrogen atoms and oxygen atoms as the only ring heteroatoms
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S435/00—Chemistry: molecular biology and microbiology
- Y10S435/8215—Microorganisms
- Y10S435/911—Microorganisms using fungi
- Y10S435/929—Fusarium
Definitions
- the present invention relates to enzyme technology.
- the present invention relates to an alcohol of the following compound ( ⁇ ) produced by the microorganism Streptomyces sandaensis No. 6897 (FERM BP-792) or produced by chemical conversion of the product.
- the present invention relates to a method for oxidizing a side chain to convert it into the following compound (I) having an aldehyde side chain.
- Compound (I) itself has a strong antitumor activity, is also an intermediate of other compounds having antitumor activity, and is a microorganism capable of easily converting compound (II) to compound (I). Was required. Disclosure of the invention
- R 1 represents hydrogen, a lower alkanoyl group or a lower alkyl group
- R 2 and R 3 represent hydrogen or a lower alkenyl group, respectively
- the inventors of the present invention have intensively studied a microorganism capable of converting the alcohol side chain of the compound (II) into an aldehyde side chain. As a result, they newly found an oxidase-producing bacterium belonging to the microorganism Fusarium and succeeded in converting it to the following compound (I) having the desired aldehyde side chain.
- FR900482 and FR066979 the compounds in which R 1 , R 2 and R 3 are each hydrogen are named FR900482 and FR066979, respectively. These compounds are produced by the microorganism Streptomyces sandaensis No. 6897 (FERM BP-792) and are described, for example, in Example 1 and 8 of JP-A-61-10590, respectively. It is a known substance having tumor activity and the like. FR066979 can also be produced by the method disclosed in Japanese Patent Laid-Open No. 1101893.
- FR900482 and FR066979 are the most preferred target compounds and starting compounds of the present invention.
- the compound in which R 1 , R 2 and R 3 are each an acetyl group is named FR066973, and R 1 and R 2 are each hydrogen and R 3 is an acetyl group.
- One compound is named FR66980, and a compound in which R 1 is a methyl group and R 2 and R 3 are each acetyl is named FR073317. Examples 3 and 4 of JP-A-61-10590. (And 6) and Example 51, respectively.
- Suitable ⁇ lower alkanol groups '' include, for example, alkanoyl groups having 1 to 6 carbon atoms such as formyl, acetyl, propionyl, butyryl, isobutylinole, pareryl, isovalerinole, pinocloyl, and hexanoyl. More preferred properly is d -C 4 Arukanoiru group are particularly preferred include Asechiru group.
- Suitable "lower alkyl groups” include, for example, methyl, ethyl, propyl, iso- Propyl, butyl, isobutyl, tert-butyl, pentyl, alkyl groups having 1 to 6 carbon atoms, cyclohexyl and the like are mentioned to, more preferably d ⁇ C 4 alkyl group, particularly preferably a methyl group . The features of this method are described below.
- No. 122 strain capable of converting compound (II) to compound (I) (hereinafter referred to as No. 122 strain) is a soil sample collected from Yakushima, Kagoshima Prefecture. It is newly separated from. The characteristics of No. 122 strain are shown below.
- Filamentous fungus No. 122 was isolated from a soil sample collected at Yakushima, Kagoshima Prefecture. These microorganisms grow extensively and extensively on various media and produce colonies with a white to yellowish-white color. Strain No. 122 did not form teleomorphs on various media, but conidia-forming cells and two types of conidia, large and small, conidia that grow on the mycelium, i.e., large conidia in a boat shape and small conidia in an oblong shape. Caused an anamorph. The mode of conidium formation was a fibroid type. The bacteriological properties of No. 122 strain are shown below.
- Table 1 summarizes the culture characteristics on various agar media. It grew extensively and broadly on potato dextrose agar, and after culturing at 25 ° C for 2 weeks, had grown to a size of 8.0 cm or more in diameter. The surface of the colonies was raised and had a wool-like, white to yellowish white color. Among the conidia, small conidia were abundant and large conidia were formed in small amounts. The back side was yellowish white. The colonies on cornmeal agar grew at the same speed as potato dextrose agar, and under the same conditions, spread over 8.0 cm in diameter. The settlement surface is raised, felt or wool, and white in color. Conidia, especially small conidia, were abundantly formed. The back side was white to yellowish white.
- the morphological characteristics are: sporulation medium with good formation of large conidia (medium composition: glycerin lg; sodium nitrate 0.5 g; potassium phosphate 0.2 g; yeast extract O. lg; agar 15 g; distilled water 1 L).
- medium composition glycerin lg; sodium nitrate 0.5 g; potassium phosphate 0.2 g; yeast extract O. lg; agar 15 g; distilled water 1 L.
- No. 122 shares Conidia are indistinguishable from vegetative mycelia and conidia-forming cells (fialides) are directly lateralized as short branches of aerial hyphae and vegetative hyphae. In some cases, vegetative mycelia may be clustered like conidia, and phialides may form inside or at the top.
- the fi laid is colorless, smooth and cylindrical, and has a size of 8-17 (-20) X 2-3 m.
- Two large and small conidia are formed continuously from the tip.
- Large conidia are colorless, smooth, 2-4 (-6) cells, hull-shaped or crescent-shaped to sausage-shaped, slightly curved at both ends and sharp, 25-35 (-42) X 3.5-4.5 (—5.5) im.
- Small conidia are colorless, smooth, 1 (1 2) cells, slightly curved oval, and 6-16 (-20) x 2.5-4 im.
- the vegetative mycelium has a smooth surface, septum, and is colorless and branched. Mycelial cells are cylindrical and 2-3-tztz wide. Chlamydospores are not formed. In culture on sub-a-dextrose agar, black and spherical sclerotia are formed.
- the No.122 strain can grow at 2 to 31 ° C, and the optimum growth temperature is 21 to 25 ° C. These data were determined on potato dextrose agar (Nissi). The characteristics of the above No. 122 strain were reported by Baron (GR Barron: The Genera of Hyphomycetes from Soil. Pp. 239—241, Wi 11 iams & Wilkins, Baltimore, 1968), by von Arx (JA von Arx: The Genera of Fungi. Sporulating in Pure Culture, pp. 180-184, J. Cramer, Vaduz, 1974), KH Domsch, Gams & T.—H. Anderson: Compendium of Soil Fungi, pp. 517—524 , Academic Press, London, 1980).
- the strain No.122 was considered to be a strain belonging to the genus Fusarium. Therefore, this strain was designated as Fusarium sp.
- Potato dextroth Growth Large and wide, 8.0cm or more in diameter
- Agar (Difco 0013) Surface: round, raised, wool-like, rich
- Wapek's liquid agar * Growth Large and wide, 8. Ocra or larger
- Emerson Yp Ss Agar Growth Large and wide, 8.0cm or more in diameter
- Cornmeal agar Growth Large and large, 8.0cm or more in diameter
- Fusarium sp. No. 104 strain (F-104 strain):
- the filamentous fungus F-104 strain is owned by the applicant.
- the microorganism grew widely and extensively on various media, and formed fluffy to wool-like colonies with white to reddish-white tones.
- This strain formed anamorphs on some media, but did not produce teleomorphs.
- the anamorph has a fibrous conidial structure with a slightly branched conidiophore, and is composed of two types of conidia (a large conidia with a ⁇ shape in 2 to 5 cells and an orchid in 1 or 2 cells). Small conidia).
- JA von Arx The Genera of Fungi. Sporulating in Pure Culture. 3rd ed., Pp. 145-163, J. Cramer, Vaduz, 1974
- the F-104 strain appeared to belong to the genus Fusarium Link 1809, a defective filamentous fungus. The following shows the mycological characteristics of the F-104 strain.
- Table 2 summarizes the culture characteristics on various agar media. Cultures on potato dextrose agar were broad and extensive, 25, and expanded to 6.0-6.5 cm in diameter after two weeks, producing circular colonies. The colony surface was raised and fluffy to wool-like. The color of the village was white to reddish white, and the periphery was grayish red. The backside of the village was brownish purple to purpledish brown, and the periphery was dull red from challenging ash. No conidial structure was formed on this medium. The colonies on the cornmeal agar medium were even faster, spread over 9.0 cm in diameter under the same conditions, and reached the petri dish wall.
- the F-104 strain was able to grow in the range of 2 to 32 ° C, and the optimal growth temperature was 21 to 24 ° C. These growth temperature data were determined on potato dextrose agar (Nissui Pharmaceutical). The mycological characteristics described above are based on the classification criteria for Fusarium II by the booth (C. Booth: The Genus Fusarium, pp. 237, Commonwealth Mycological Institute, ew, 1971), and by H. Domsch, W. Gams & T . -H. Anderson:
- Emerson YpSs agar Wide and large, round, 7.0-8.0 cm in diameter
- Oatmeal agar Growth Large and wide, round, 8.0-9.0cm in diameter
- the production of compound (I) is not limited to using the specific microorganisms described herein for illustrative purposes only.
- the present invention relates to a human mutant which can be produced from the microorganism by a conventional method such as spontaneous mutant bacterium and treatment with X-ray irradiation, ultraviolet irradiation, N-methyl-N, 12-nitro N-nitrosoguanidine, 2-aminopurine, or the like. It also encompasses the use of any mutant bacterium capable of converting compound (II) to compound (I), including mutant bacterium.
- Examples of the bacteria producing 1 ⁇ 900482 substance include the following bacteria. Fusarium strains owned by the applicant:
- the oxidase produced by the microorganism of the present invention can be obtained by oxidizing the alcohol side chain of the compound represented by the above formula ( ⁇ ) to give a compound represented by the following structural formula (I) (known in Japanese Patent Application Laid-Open No. 61-10590). ) Is generated.
- the oxidase does not necessarily have to be isolated in a pure state, and the producing strain is cultured together with the compound (II), or a culture solution of the microorganism of the present invention, a bacterial cell, or a solution obtained by removing the microorganism from the culture.
- the target compound (I) can also be obtained by using a crude product of the above oxidase instead.
- the culture solution or the bacterial cells used as the oxidase of the present invention, or the bacterial fluid removed from the culture may be a strain belonging to the genus Fusarium such as Fusarium. Sp. No. 122 or No. 104. Is cultured in a medium.
- the novel microorganism can be produced by culturing in an aqueous medium containing an assimilable carbon source and a nitrogen source, preferably under aerobic conditions such as shaking culture and submerged culture.
- Preferred carbon sources for the medium include carbohydrates such as glucose, maltose, sucrose, flattose, galactose, mannitol, glycerin, starch and the like.
- Preferred nitrogen sources include organic nitrogen compounds such as soybean flour, cottonseed meal, wheat germ, gluten meal, corn steep powder, peanut flour, and linseed oil meal, and inorganic nitrogen compounds such as ammonium nitrate and ammonium sulfate.
- inorganic salts such as potassium phosphate, magnesium sulfate, sodium chloride, iron sulfate, cobalt sulfate and the like may be added.
- an antifoaming agent such as liquid paraffin, fatty acid, vegetable oil, mineral oil or silicone may be added as necessary.
- a deep aerobic culture is preferable.
- shaking culture or surface culture is performed in flasks or bottles.
- the medium that produces this preculture inoculum may be substantially the same as the medium used in the large tank, or may be different.
- Agitation and aeration of the culture mixture can be performed in various ways. Agitation can also be achieved by using a probe or equivalent stirring device, by rotating or shaking the fermenter, by using various pumping devices, or by passing sterile air through the medium. Can be. Aeration may be provided by passing sterile air through the fermentation mixture.
- Fermentation is usually performed at a temperature in the range of about 20 ° C to 32 ° C, preferably 25 ° C to 30 ° C, preferably at a pH of 6 to 8, and is carried out for about 72 to 200 hours, but it may vary depending on fermentation conditions and scale. Let me do it.
- the substrate FR066979 may be added as an aqueous solution at the start of culture or at an appropriate time, and a fermentation broth with low purity may be used.
- the FR900482 converted in this way can be recovered from the culture medium by conventional methods commonly used for the recovery of other known biologically active substances.
- the converted FR900482 is present in the culture solution, and can be separated and purified by a conventional method such as treatment with a conventional resin such as an adsorbed resin, crystallization or the like after the culture broth is passed or centrifuged.
- a conventional resin such as an adsorbed resin, crystallization or the like after the culture broth is passed or centrifuged.
- composition of cottonseed meal 1%, soybean flour 1%, ammonium nitrate 0.1%, potassium dihydrogen phosphate 0.1%, magnesium sulfate heptahydrate 0.05%, sodium chloride 0.1%, ferric sulfate heptahydrate 0.001% A 500-ml Erlenmeyer flask containing 100 ml of a seed culture medium is sterilized at 121 ° C for 20 minutes, inoculated with one or two loops of Fusarium sp. No. 122 strain agar culture, and shaken at 25 for 2 days. The cells were cultured to form a seed culture.
- a production medium consisting of maltose monohydrate 5%, soybean flour 2%, potassium dihydrogen phosphate 0.1%, magnesium sulfate heptahydrate 0.05% to pH 6.0, and include 10ml of this production medium.
- the lOOml Erlenmeyer flask was sterilized at 121 ° C for 20 minutes, inoculated with the seed culture 0.5d, and cultured with shaking at 30 ° C for 3 days. Furthermore, 0.3 ml of a 10 mg / ml aqueous solution of FR066979 was added, and the cells were shake-cultured for another 3 days and converted to FR900482.
- the culture solution was passed through Np.2 paper, and the production amount of FR900482 was determined by monitoring the production of FR900482 using a high-performance liquid chromatography (HPLC) with a UV detector (wavelength: 215 nm).
- HPLC high-performance liquid chromatography
- composition of cottonseed meal 1%, soybean flour 1%, ammonium nitrate 0.1%, potassium dihydrogen phosphate 0.1%, magnesium sulfate heptahydrate 0.05%, sodium chloride 0.1%, ferric sulfate heptahydrate 0.001% A 500-ml Erlenmeyer flask containing 100 ml of a seed culture medium is sterilized at 121 ° C for 20 minutes, inoculated with one or two loops of agar agar culture of Fusarium sp. No. 122 strain, and shaken at 25 for 2 days. The cells were cultured to form a seed culture.
- a production medium consisting of maltose monohydrate 5%, soybean flour 2%, potassium dihydrogen phosphate 0.1%, magnesium sulfate heptahydrate 0.05% was adjusted to pH 6.0, and this production medium 10ml Sterilize a 100 ml Erlenmeyer flask containing the above at 121 ° C for 20 minutes, inoculate 0.5 ml of the above seed culture, add 0.3 ml of FR066979 lOmgZml aqueous solution, shake culture for 8 days, and convert to FR900482.
- a production medium consisting of maltose monohydrate 5%, soybean flour 2%, potassium dihydrogen phosphate 0.1%, magnesium sulfate heptahydrate 0.05% was adjusted to pH 6.0, and this production medium 10ml Sterilize a 100 ml Erlenmeyer flask containing the above at 121 ° C for 20 minutes, inoculate 0.5 ml of the above seed culture,
- FR900482 was determined by monitoring the production of FR900482 using a high-performance liquid chromatography (HPLC) with a UV detector (wavelength: 215 nm). Conversion from FR066979 to FR900482 by No.122 strain
- Seed culture medium composition Pharma media 1%, soybean flour 1%, NH H N0 3 0.1%,
- the substrate was added using a pipe so that the final concentration was 300 gZral at the start of the culture.
- Soybean paste 17 235 30 214 Soybean flour 103 128 136 97 Pharmaceutical 79 163 72 146 Corn cheese 0 178 0 154 Corn cheese powder 15 188 21 178 Dry yeast 79 146 105 95 Potato protein 30 215 49 131 defatted wheat germ 59 195 161 59 wheat germ 30 233 76 169 gluten mill 20 244 61 171 defatted soy flour 93 121 112 75 peanut flour 62 198 87 180 Amani oil cake 101 115 63 130
- a culture solution 10 of Streptomyces sandaens is No. 6897, which was cultured according to the method of JP-A-1-101893, was passed, and a solution ⁇ was obtained after washing the cells with water.
- FR066979 is present at a total concentration of about 1 tng / ml.
- the solution was applied to 5 synthetic adsorption resins such as SEPABEADS SP850 and SEPABEADS SP207. After washing the resin with water to remove proteins, amino acids and salts, FR900482 and FR066979 were eluted with 20 50% methanol water.
- 5 synthetic adsorption resins such as SEPABEADS SP850 and SEPABEADS SP207. After washing the resin with water to remove proteins, amino acids and salts, FR900482 and FR066979 were eluted with 20 50% methanol water.
- the methanol aqueous solution was concentrated to 1.5, added to 10 £ of Fusarium sp. No. 122 culture solution, and reacted from FR066979 to FR900482. The reaction was terminated when FR066979 fell below the detection limit (about 15 hours).
- the concentration of FR900482 was about 730 / igZml.
- reaction solution was passed through the reaction solution to obtain “liquid 11 ⁇ ⁇ ”, which was applied to DIAION HP20 adsorption resin 2. After washing proteins, amino acids and salts with 10% methanol water, elution was carried out with 20N of 0.05N sulfuric acid. The concentration of FR900482 was 370 g / ml.
- This active area was concentrated to 10 ⁇ and supplied to 5 A of DI AION HP1MG adsorption resin. After washing with 40 water, FR900482 was eluted with 50% methanol water15.
- This ethyl acetate layer was concentrated to 75 ml, to which 75 ml of pyridine and 16 ml of acetic anhydride were added, and the reaction from FR066980 to FR066973 was carried out at 40 ° C. with stirring for 15 hours. After confirming that the conversion to FR066973 was 95% or more, the reaction was terminated by adjusting the pH to 3 with 6N hydrochloric acid. 500 ml of water was added, and pyridine was transferred to the aqueous layer under acidic conditions, followed by separation and removal. Further, 500 ml of a 10% sodium bicarbonate suspension was added, and unreacted anhydric anhydride / acetic acid was transferred to and removed from the aqueous layer. As a result, about 6 g of FR066973 was formed in the ethyl acetate layer.
- HPLC tunable UV detector Shiadzu SPD - 10A
- a pump Shiadzu LC- 10AD
- the stationary phase TSKgel ODS 80T M 46 mm 150mm id grains Using a diameter of 5111
- UV was detected at 220 nm.
- the retention time of FR066973 was about 5.1 minutes, and that of FR073317 was about 4.7 minutes.
- F. tricinctum (Fusarium. Sp. No. 104) has been deposited with the Institute of Life Science and Industrial Technology, National Institute of Advanced Industrial Science and Technology.
- the seed culture solution was inoculated into the main culture medium to which 300 g / ml of FR066979, which had been over-sterilized beforehand, was added, and cultured with shaking at 25 ° C for 8 days. After culturing, the 15N H 2 S0 4 50 1 was added, the FR900482 in the supernatant obtained by centrifugation 2800 rpm, 10 minutes was measured by HPLC.
- FR900482 can be produced in high yield from FR066979.
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- Organic Chemistry (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Zoology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Microbiology (AREA)
- General Chemical & Material Sciences (AREA)
- Biotechnology (AREA)
- Health & Medical Sciences (AREA)
- Biochemistry (AREA)
- Bioinformatics & Cheminformatics (AREA)
- General Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Genetics & Genomics (AREA)
- Micro-Organisms Or Cultivation Processes Thereof (AREA)
- Preparation Of Compounds By Using Micro-Organisms (AREA)
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/284,481 US6204031B1 (en) | 1996-10-29 | 1997-10-28 | Process for preparing FR900482 and compounds analogous thereto |
CA002270181A CA2270181A1 (en) | 1996-10-29 | 1997-10-28 | Novel process for preparing fr900482 and compounds analogous thereto |
EP97909655A EP0943689A4 (en) | 1996-10-29 | 1997-10-28 | METHOD FOR PRODUCING FR900482 AND ANALOG CONNECTIONS |
AU47247/97A AU725546B2 (en) | 1996-10-29 | 1997-10-28 | Novel process for preparing FR900482 and compounds analogous thereto |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8/286805 | 1996-10-29 | ||
JP28680596 | 1996-10-29 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/705,898 Division US6423530B1 (en) | 1996-10-29 | 2000-11-06 | Process for preparing FR900482 and compounds analogous thereto |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1998018953A1 true WO1998018953A1 (fr) | 1998-05-07 |
Family
ID=17709284
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1997/003907 WO1998018953A1 (fr) | 1996-10-29 | 1997-10-28 | Nouveau procede de fabrication de fr900482 et de composes analogues |
Country Status (7)
Country | Link |
---|---|
US (2) | US6204031B1 (ja) |
EP (1) | EP0943689A4 (ja) |
KR (1) | KR20000049023A (ja) |
AU (1) | AU725546B2 (ja) |
CA (1) | CA2270181A1 (ja) |
TW (1) | TW480287B (ja) |
WO (1) | WO1998018953A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2000074683A1 (fr) * | 1999-06-07 | 2000-12-14 | Fujisawa Pharmaceutical Co., Ltd. | Potentialisateurs d'effet antitumoral |
WO2001097812A1 (fr) * | 2000-06-20 | 2001-12-27 | Fujisawa Pharmaceutical Co., Ltd. | Preparations pharmaceutiques contenant des composes tetracycliques |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2270181A1 (en) * | 1996-10-29 | 1998-05-07 | Fujisawa Pharmaceutical Co., Ltd. | Novel process for preparing fr900482 and compounds analogous thereto |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0166389A1 (en) * | 1984-06-25 | 1986-01-02 | Fujisawa Pharmaceutical Co., Ltd. | New tetracyclo compounds, a process for their production and a pharmaceutical composition containing the same |
JPH01101893A (ja) * | 1987-10-15 | 1989-04-19 | Fujisawa Pharmaceut Co Ltd | Fr−66979物質の製造法 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB8332390D0 (en) * | 1983-12-05 | 1984-01-11 | Fujisawa Pharmaceutical Co | Compound fr-900451 |
CA2270181A1 (en) * | 1996-10-29 | 1998-05-07 | Fujisawa Pharmaceutical Co., Ltd. | Novel process for preparing fr900482 and compounds analogous thereto |
-
1997
- 1997-10-28 CA CA002270181A patent/CA2270181A1/en not_active Abandoned
- 1997-10-28 AU AU47247/97A patent/AU725546B2/en not_active Ceased
- 1997-10-28 WO PCT/JP1997/003907 patent/WO1998018953A1/ja not_active Application Discontinuation
- 1997-10-28 US US09/284,481 patent/US6204031B1/en not_active Expired - Fee Related
- 1997-10-28 EP EP97909655A patent/EP0943689A4/en not_active Withdrawn
- 1997-10-28 TW TW086115939A patent/TW480287B/zh not_active IP Right Cessation
- 1997-10-28 KR KR1019990703089A patent/KR20000049023A/ko not_active Withdrawn
-
2000
- 2000-11-06 US US09/705,898 patent/US6423530B1/en not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0166389A1 (en) * | 1984-06-25 | 1986-01-02 | Fujisawa Pharmaceutical Co., Ltd. | New tetracyclo compounds, a process for their production and a pharmaceutical composition containing the same |
JPH01101893A (ja) * | 1987-10-15 | 1989-04-19 | Fujisawa Pharmaceut Co Ltd | Fr−66979物質の製造法 |
Non-Patent Citations (3)
Title |
---|
J. AM. CHEM. SOC., (1987), Vol. 109, No. 13, "Structure of FR 900482, a Novel Antitumor Antibiotic from a Streptomyces", pages 4108-4109. * |
See also references of EP0943689A4 * |
THE JOURNAL OF ANTIBIOTICS, (1988), Vol. 41, No. 3, "Precursors in the Biosynthesis of FR-900482, a Novel Antitumor Antibiotic Produced by Streptomyces Sandaensis", pages 392-394. * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2000074683A1 (fr) * | 1999-06-07 | 2000-12-14 | Fujisawa Pharmaceutical Co., Ltd. | Potentialisateurs d'effet antitumoral |
WO2001097812A1 (fr) * | 2000-06-20 | 2001-12-27 | Fujisawa Pharmaceutical Co., Ltd. | Preparations pharmaceutiques contenant des composes tetracycliques |
Also Published As
Publication number | Publication date |
---|---|
AU4724797A (en) | 1998-05-22 |
AU725546B2 (en) | 2000-10-12 |
US6423530B1 (en) | 2002-07-23 |
KR20000049023A (ko) | 2000-07-25 |
CA2270181A1 (en) | 1998-05-07 |
EP0943689A4 (en) | 2000-12-20 |
US6204031B1 (en) | 2001-03-20 |
TW480287B (en) | 2002-03-21 |
EP0943689A1 (en) | 1999-09-22 |
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